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FLOPPY DISKS
Small size
Removable
Media storage devices
Its
Record data
onto
a thin
circular magnetic film encased
in a flat,
square plastic jacket
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In 1971,
IBM introduced the 8-inch floppy disk,
initial capacity was about 100K bytes (100,000 characters)
In 1976,
Shugart introduced the 5 1/4-inch floppy disk.
Initial capacity was about 100K,
eventually reaching 1.2M bytes per disk.
In 1977,
The Northstar Horizon
was one of the first computers
with built-in 5 1/4-inch floppy drives,
they held 90K of data each.
In 1979,
the Radio Shack TRS-80 II computer system
had an internal 8-inch floppy drive
capable of storing 500K of data.
In 1980,
Sony introduced
the 3 1/2-inch floppy disk.
Initially holding about 400K,
current capacity is 1.4Meg per disk.
In 1984,
the Apple Macintosh
had an internal 3 1/2-inch floppy drive
capable of storing 400K of data.
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Today
other storage devices
that are more
convenient and robust,
such as
compact disks and memory sticks,
have largely replaced floppy disks.
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